Common Sentences 2

The four sentences in Group A share a special feature. If you correctly identify that common feature, you will find that one of the sentences in Group B also has that same feature. What is the feature? What sentence in Group B can be added to Group A?

Group A:
A four watt bulb lacks the necessary brightness.
The ogre enjoyed eating people.
The warming rays of the sun also burn.
Wings and halos are for angels.

Group B:
Always look before you leap.
Cats and dogs are bitter enemies.
Girls just want to have fun.
Her right eyebrow needs trimming.
My elephant has fleas.
The tiger lives in the jungle.